1021: 华氏温度转换摄氏温度

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:54 Solved:19

Description

输入华氏温度f(实数),利用公式c=5/9(f-32)转换为摄氏温度c,并且输出c(保留小数点后两位小数)

Input

80

Output

26.67

Sample Input Copy

100

Sample Output Copy

37.78